Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 17-06-2014, 10:11   #1
Registered User
 
Prairie Chicken's Avatar

Join Date: Apr 2009
Location: Canada or Spain
Boat: Jeanneau SO 43 DS
Posts: 1,141
Images: 1
Upside down Rocna - Solution?

My apologies if this has already been discussed somewhere in the 52 pages of anchor threads, but Search isn't helping & I'm on a slow connection.

Our new to us boat came with a 22 kg Rocna & it is showing a distinct tendency to come up to the roller upside down. Trying to straighten it to sit properly on the roller requires some serious stretching & boat-hook maneuvering and is bad news looking to happen. This was never an issue with our trusty CQR.

Why are anchor shanks not round? Is this a Rocna issue? Is there a simple solution? Can anyone comment on the "Junction chain-anchor elbow" which suggests it is a solution to the problem?
__________________

__________________
Prairie Chicken
><((((>`..`..`...><((((>.
`..`..`...><((((>`..`..` ...><((((>
Prairie Chicken is offline   Reply With Quote
Old 17-06-2014, 10:17   #2
Registered User
 
jeremiason's Avatar

Join Date: Oct 2010
Location: Punta Gorda, Florida
Boat: Cruisers Yachts 420 Express
Posts: 1,430
Images: 2
Send a message via ICQ to jeremiason Send a message via Yahoo to jeremiason Send a message via Skype™ to jeremiason
Re: Upside down Rocna - solution?

We have a 25kg Rocna and used it for three years of cruising... You can't find a better anchor!

As for it coming up backwards... When Mine does that I back it down a little and let the chain twist it around until it turns. If for some reason it doesn't I lower so more. It always eventually turns around.

On the other hand, it is definitely heavier on the on the plow side, maybe your roller is angled slightly causing it to turn?
__________________

__________________
Tom Jeremiason
Punta Gorda, Florida

jeremiason is offline   Reply With Quote
Old 17-06-2014, 10:26   #3
Senior Cruiser
 
colemj's Avatar

Cruisers Forum Supporter

Join Date: Oct 2005
Location: Presently on US East Coast
Boat: Manta 40 "Reach"
Posts: 10,088
Images: 12
Re: Upside down Rocna - solution?

Anchors without weighted tips tend to come up randomly. Since the Rocna's rollbar puts weight in the back, it may even favor coming up backwards. Ours has a swivel connecting it to the chain and it is about 50/50 for us. Since ours comes up right at the bow roller at our feet, we simply turn it by hand.

I don't know what you are referring to when you wrote "Junction chain-anchor elbow", but I would be very cautious on adding any connection except a known good shackle. There are only two swivels I would ever use, and only one I would connect directly to the anchor.

Mark
__________________
www.svreach.com

You do not need a parachute to skydive. You only need a parachute to skydive twice.
colemj is offline   Reply With Quote
Old 17-06-2014, 10:44   #4
Senior Cruiser
 
Vasco's Avatar

Cruisers Forum Supporter

Join Date: Apr 2004
Location: Toronto
Boat: CS36Merlin, "La Belle Aurore" Ben393 "Breathless"
Posts: 7,414
Re: Upside down Rocna - solution?

If it's upside down just turn the chain a bit. I have to do that all the time with my Manson Supreme. Nothing to it, just grab the chain and twist a bit. The anchor will turn, then haul it in quickly. I always haul the anchor through the roller by hand. Too easy to wreck things if you use the windlass and it gets stuck coming through the roller. I don't believe in swivels.
__________________
Rick I
Toronto in summer, Bahamas in winter.
http://groups.yahoo.com/group/beneteau393/
Vasco is offline   Reply With Quote
Old 17-06-2014, 13:42   #5
Marine Service Provider

Join Date: Oct 2005
Posts: 1,659
Re: Upside down Rocna - solution?

Something happened to Rocnas about 18-24 months ago. We suddenly had many saying they were coming up backwards, which was something that we'd only heard occasionally as we do with most designs. No idea why the change but it was quite noticeable with the sudden change.

Fit a 'anchor straightener' and all will be good. Google will find one local to you.
GMac is offline   Reply With Quote
Old 17-06-2014, 14:11   #6
Moderator
 
Jim Cate's Avatar

Join Date: May 2008
Location: cruising SW Pacific
Boat: Jon Sayer 1-off 46 ft fract rig sloop strip plank in W Red Cedar
Posts: 15,122
Re: Upside down Rocna - solution?

For the OP: Are you moving through the water when the anchor comes to the surface? I have noted that with our Manson Supreme, hydrodynamic forces when going forward will bring the anchor up "backwards", and conversely, if going in reverse, the anchor is in the "forwards" attitude.

Don't know if it is the same with the Rocna, but they are pretty similar anchors, so you might try going slowly in reverse whilst getting the last few feet of chain.

Cheers,

Jim
__________________
Jim and Ann s/v Insatiable II back in the water, stooging around Moreton bay for a while.
Jim Cate is offline   Reply With Quote
Old 17-06-2014, 14:38   #7
Senior Cruiser
 
DoubleWhisky's Avatar

Cruisers Forum Supporter

Join Date: Oct 2010
Location: Home at Warsaw, Poland, boat in Eastern Med
Boat: Ocean Star 56.1 LR
Posts: 1,841
Re: Upside down Rocna - solution?

Hi, Prairie

Have a look at this:

Ultra swivel

Cheers,

Tomasz
DoubleWhisky is offline   Reply With Quote
Old 17-06-2014, 14:56   #8
Registered User

Join Date: Jun 2014
Location: Annapolis, MD
Posts: 73
Re: Upside down Rocna - solution?

60% of the time mine comes right side up
20% of the time it is backwards or sideways when it starts to come over the roller and just waiting for the boat to roll / have movement from a swell will straighten it out.
20% of the time just stand on it / twist chain / push it by hand.

I think I agree with Jim's observation that it's more likely to come up backwards if the boat is moving forward.
SV Lift is offline   Reply With Quote
Old 17-06-2014, 15:49   #9
Writing Full-Time Since 2014
 
thinwater's Avatar

Join Date: Nov 2008
Location: Deale, MD
Boat: PDQ Altair, 32/34
Posts: 6,495
Re: Upside down Rocna - solution?

Perhaps this is simpler than you realize. Turn the anchor 180 degrees on the chain.

The chain cannot rotate in the gypsy. Ergo, if it is rotated 180 degrees, perhaps you attached it 180 degrees different from the last anchor.

Which explains why 50% of the folks have this mysterious problem.

---

My experience is like SV Lift. A few moments of random motion do the trick.
__________________
Gear Testing--Engineering--Sailing
http://sail-delmarva.blogspot.com/
thinwater is offline   Reply With Quote
Old 17-06-2014, 16:40   #10
Senior Cruiser
 
Vasco's Avatar

Cruisers Forum Supporter

Join Date: Apr 2004
Location: Toronto
Boat: CS36Merlin, "La Belle Aurore" Ben393 "Breathless"
Posts: 7,414
Re: Upside down Rocna - solution?

Quote:
Originally Posted by thinwater View Post
Perhaps this is simpler than you realize. Turn the anchor 180 degrees on the chain.

The chain cannot rotate in the gypsy. Ergo, if it is rotated 180 degrees, perhaps you attached it 180 degrees different from the last anchor.

Which explains why 50% of the folks have this mysterious problem.

---

My experience is like SV Lift. A few moments of random motion do the trick.

But after anchoring for six months the chain is all twisted.
__________________
Rick I
Toronto in summer, Bahamas in winter.
http://groups.yahoo.com/group/beneteau393/
Vasco is offline   Reply With Quote
Old 17-06-2014, 17:24   #11
Moderator
 
JPA Cate's Avatar

Join Date: Nov 2011
Location: aboard, cruising in Australia
Boat: Sayer 46' Solent rig sloop
Posts: 16,778
Re: Upside down Rocna - solution?

Quote:
Originally Posted by Vasco View Post
But after anchoring for six months the chain is all twisted.
...And that's why, once a year, we remove the anchor, lower all the chain to the dock, and un-twist it, reload it, reapply the anchor. Just one of those things one has to do.

A.
__________________
Who scorns the calm has forgotten the storm.
JPA Cate is online now   Reply With Quote
Old 17-06-2014, 17:29   #12
Registered User

Join Date: Mar 2013
Location: Australia
Boat: 21 ft sail boat
Posts: 347
Re: Upside down Rocna - solution?

Quote:
Originally Posted by DoubleWhisky View Post
Hi, Prairie

Have a look at this:

Ultra swivel

Cheers,

Tomasz

Must be expensive-you have to make an appointment to find how much it is. Might make one on my lathe.
Adventurebound is offline   Reply With Quote
Old 17-06-2014, 17:55   #13
DRS
Registered User
 
DRS's Avatar

Join Date: Jun 2009
Location: Vancouver BC
Boat: Lagoon 380
Posts: 364
Images: 7
Re: Upside down Rocna - solution?

I have a Rocna as well and sometimes it comes up the wrong way buts it just a twist of the chain and we are good to go. But on the cat the anchor is much easier to get at.
What about putting a loop of rope tied at the roll bar that you could reach easily with the boat hook and guide it to the correct orientation ???
just a thought
__________________
You can sail anywhere on the planet and never be more than 7 miles from land - it might be straight down, but its never more than seven miles
DRS is offline   Reply With Quote
Old 17-06-2014, 18:13   #14
Senior Cruiser
 
Vasco's Avatar

Cruisers Forum Supporter

Join Date: Apr 2004
Location: Toronto
Boat: CS36Merlin, "La Belle Aurore" Ben393 "Breathless"
Posts: 7,414
Re: Upside down Rocna - solution?

Quote:
Originally Posted by Ann T. Cate View Post
...And that's why, once a year, we remove the anchor, lower all the chain to the dock, and un-twist it, reload it, reapply the anchor. Just one of those things one has to do.

A.
Yes, we do it every fall when we get the boat out of storage.
__________________
Rick I
Toronto in summer, Bahamas in winter.
http://groups.yahoo.com/group/beneteau393/
Vasco is offline   Reply With Quote
Old 18-06-2014, 07:03   #15
Senior Cruiser
 
colemj's Avatar

Cruisers Forum Supporter

Join Date: Oct 2005
Location: Presently on US East Coast
Boat: Manta 40 "Reach"
Posts: 10,088
Images: 12
Re: Upside down Rocna - solution?

Quote:
Originally Posted by thinwater View Post
Perhaps this is simpler than you realize. Turn the anchor 180 degrees on the chain.

The chain cannot rotate in the gypsy. Ergo, if it is rotated 180 degrees, perhaps you attached it 180 degrees different from the last anchor.

Which explains why 50% of the folks have this mysterious problem.

---

My experience is like SV Lift. A few moments of random motion do the trick.
Perhaps theoretically, but in practice, there is that bit of chain between the gypsy and the anchor that can have a random twist in it. In our case, that is 8' of chain.

I think most people have said that the anchor comes up 50/50 right way, not that 50% of people don't have the problem and 50% do.

Mark
__________________

__________________
www.svreach.com

You do not need a parachute to skydive. You only need a parachute to skydive twice.
colemj is offline   Reply With Quote
Reply

Tags
rocna

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Upside of Hurricane sailorboy1 Off Topic Forum 8 28-08-2011 09:34
New Owner's Cat Capsizes: Stable, Though Upside Down; All Crew Survive CastOff Multihull Sailboats 39 16-09-2010 12:21
Get Down, Mast, Get Down! cherrick Deck hardware: Rigging, Sails & Hoisting 1 19-07-2009 05:00

Advertise Here


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:07.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×

ShowCase vBulletin Plugins by Drive Thru Online, Inc.